JPS57102374A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS57102374A
JPS57102374A JP17920980A JP17920980A JPS57102374A JP S57102374 A JPS57102374 A JP S57102374A JP 17920980 A JP17920980 A JP 17920980A JP 17920980 A JP17920980 A JP 17920980A JP S57102374 A JPS57102374 A JP S57102374A
Authority
JP
Japan
Prior art keywords
layer
thermal head
resistor
wear resistant
si3n4
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP17920980A
Other languages
Japanese (ja)
Other versions
JPH0143633B2 (en
Inventor
Takayuki Yamaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP17920980A priority Critical patent/JPS57102374A/en
Publication of JPS57102374A publication Critical patent/JPS57102374A/en
Publication of JPH0143633B2 publication Critical patent/JPH0143633B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To improve the crack resistance of a wear resistant layer and the oxidation resistance of a heating resistor and to prolong the lifetime of a thermal head by forming a nitride layer formed of AlN or/and Si3N4 between the resistor and the wear resistant layer. CONSTITUTION:In a thin film type thermal head in which a heating resistor 2 of Ta2N or the like is formed on an insulator substrate 1 formed of glazed alumina or the like and a pair of electrodes 3, 4 formed of Au/Cr thin film or the like are provided at both ends, a wear resistant layer 5 formed of SiC or the like is formed via a nitride layer 7 formed of AlN or/and Si3N4 on the heater 2. Since the layer 7 is formed between the resistor 2 and the layer 5, the crack resistance of the layer 5 and the oxidation resistance of the resistor 2 can be simultaneously improved, and the lifetime of the thermal head can be remarkably prolonged.
JP17920980A 1980-12-18 1980-12-18 Thermal head Granted JPS57102374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17920980A JPS57102374A (en) 1980-12-18 1980-12-18 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17920980A JPS57102374A (en) 1980-12-18 1980-12-18 Thermal head

Publications (2)

Publication Number Publication Date
JPS57102374A true JPS57102374A (en) 1982-06-25
JPH0143633B2 JPH0143633B2 (en) 1989-09-21

Family

ID=16061831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17920980A Granted JPS57102374A (en) 1980-12-18 1980-12-18 Thermal head

Country Status (1)

Country Link
JP (1) JPS57102374A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101889A (en) * 1982-12-03 1984-06-12 株式会社東芝 High thermoconductive composite heat sink substrate
JPS623968A (en) * 1985-06-29 1987-01-09 Noritake Co Ltd Abrasion-resistant thin film thermal head
JPS62151359A (en) * 1985-12-25 1987-07-06 Alps Electric Co Ltd Thermal head

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526380A (en) * 1975-07-07 1977-01-18 Matsushita Electric Ind Co Ltd Abrasion resistant thin film
JPS5582679A (en) * 1978-12-19 1980-06-21 Matsushita Electric Ind Co Ltd Thin film type thermal head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526380A (en) * 1975-07-07 1977-01-18 Matsushita Electric Ind Co Ltd Abrasion resistant thin film
JPS5582679A (en) * 1978-12-19 1980-06-21 Matsushita Electric Ind Co Ltd Thin film type thermal head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101889A (en) * 1982-12-03 1984-06-12 株式会社東芝 High thermoconductive composite heat sink substrate
JPH0445993B2 (en) * 1982-12-03 1992-07-28 Tokyo Shibaura Electric Co
JPS623968A (en) * 1985-06-29 1987-01-09 Noritake Co Ltd Abrasion-resistant thin film thermal head
JPS62151359A (en) * 1985-12-25 1987-07-06 Alps Electric Co Ltd Thermal head

Also Published As

Publication number Publication date
JPH0143633B2 (en) 1989-09-21

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